DVI,

I used the same OS 61 , no pump amd a slimline pitts muffler. Great tank pressure and fuel flow not a problem. At 7 pounds the vertical is very good.

So far I have flown it exactly once. Cowl srews were loose and nearly vibrated clear through, so I took it home.

I only got to check top end performance and fuel flow at attitudes and throttle settings. Good.

I haven't yet checked the low speed performance, and that is what I bought the plane to do, slow aerobatics.

My incedence seems off quite a bit. Everything had measured zero zero with maybe 1 dgree down in the engine.

With nearly full down trim axial rolls wobbled. I will adjust the saddle and possibly the engine thrust.

Plane stays very clean and looks good in the air.

Dogon it ! I'm at work and can't post a pic. There is one in scale under art's chipmunk.